What process involves the force of flowing water dislodging particles from the river banks and beds?

The process that involves the force of flowing water dislodging particles from the river banks and beds is hydraulic action. This process occurs when the kinetic energy of moving water exerts pressure on the riverbanks and riverbed, causing particles of rock and soil to become loosened and moved downstream. Hydraulic action is particularly effective in river environments, especially during periods of high water flow, as the water forces its way into cracks and crevices, ultimately breaking apart the material.

In contrast, corrosion (or abrasion) refers to the grinding down of surfaces as sediments and particles carried by the water scrape against the riverbanks and bed, eroding them in a different manner than the direct force of water. Solution involves the chemical process where minerals dissolve in water, often relevant in areas with limestone and other soluble rocks, and does not physically dislodge particles in the same way. Attrition is the process where rocks and sediments collide with one another in the flow of water, leading to a gradual reduction in size and smoothing of these particles, rather than the direct dislodging from banks or beds.